Disassemblable table

Abstract

A table comprising a vertical column provided at the upper end with a plurality of radially outwardly directed arm members for supporting the table top and at the lower end with radially outwardly directed foot members detachably connected thereto said arm and foot members having their inner cylinder sector-like portions at least the end portions of the column being hollow and the inner sector-like elements of the arm and foot members are dimensioned to form together respectively at least a part of a hollow cylindrical body adapted to be received at least partially inside one of said hollow end portions of the column respectively, sector-like members of different angular amplitudes being provided to be arranged between said inner sector-like elements of the arm members and foot members respectively, which fill the space therebetween when necessary, an expansion locking device being coaxially mounted inside the hole defined in combination by said sector-like elements adapted to apply a radial pressure on said sector-like elements on at least one zone placed inside the hollow end portions of the column.

What we claim is: 
     
       1. A table comprising at least a vertical column provided at the upper end with a detachable support structure supporting a detachable table top and constituted of a plurality of radially outwardly directed arm members detachably connected to the upper end of said column, while at the lower end of this latter a plurality of radially outwardly directed foot members are detachably connected, said arm and foot members having their inner portions shaped as sectors of a same hollow cylindrical body, characterized by the fact that at least the end portions of each column are hollow and the inner sector-like elements of the arm and foot members are shaped and dimensioned to form together respectively at least a part of a hollow cylindrical body adapted to be received at least partially inside one of said hollow end portions of said column respectively a plurality of sector-like members of different angular amplitudes being provided to be inserted between said inner sector-like elements of the arm members and foot members respectively, acting as spacers to complete each hollow cylindrical body, an expansion locking device being coaxially mounted inside the hole defined in combination by each set of said sector-like elements of the arm members, the foot members and the spacers and which apply a substantially radially outwardly directed pressure effect on said sector-like elements on at least one zone placed inside the hollow end portions of the column. 
     
     
       2. A table according to claim 1, wherein the angular amplitude of the inner sector-like elements of the arm or foot members is equal to 360°:n-a, where n is the maximum number of the arm or foot members which is provided, and a is a small angle to create a gap between the adjacent sector like elements, sufficient to allow a small radial outwardly directed displacement thereof, enabling said elements to be locked against the inner surface of the column. 
     
     
       3. A table according to claim 1, wherein the outer surface of each sector like element is provided with an annular shoulder facing the adjacent column end, the outer diameter of said elements being equal to the outer diameter of the column, while the outer diameter of said elements beyond said shoulders is such that this part of each sector-like element enters inside the hollow end portions of the column, said shoulders serving to correctly defining the portions of said elements to be received inside the column ends. 
     
     
       4. A table according to claim 1, wherein the inner hole defined in combinazion by all the sector-like elements has an annular shoulder forming an annular step near the inner end of said hole, and the expansion locking device comprises a threaded rod to be mounted concentric with said hole and made integral at its inner end with a first washer designed to abut against said annular shoulder, while a second similar washer rests against the first washer with the interposition of a sleeve of hardened caoutchouc or the like said second washer being made integral with a tubular body freely mounted around said rod and forming at its upper end a flange of an outer diameter less than the inner diameter of the said hole, upon said flange a nut being screwed on said rod, the screwing of which produces the relative approach of said washers and, as a result thereof, the outer bulging of the sleeve which causes the sector-like elements to be pressure locked against the inner surface of the column. 
     
     
       5. A table according to claim 4, wherein the washers have the form of truncated cones having their smaller bases facing one another while the sleeve is formed by sleeve sectors, which are held together by an elastic ring inserted inside an annular groove arranged on the outer surface of the set of sleeve sectors. 
     
     
       6. A table according to claim 1, wherein the inner hole formed in combination by the sector-like elements is conical and tapered innerwardly with respect of the column, and wherein the expansion locking device includes two expansion locking systems operating in parallel planes set at right angles to the axis of the column, but inside said column, said locking device comprising a threaded, rod at the inner end of which is mounted a first conical washer shaped to be partially inserted into the inner smaller orifice of the conical hole defined by the sector-like elements, while at a distance from said conical washer less than the distance between said inner hole end and the outer shoulder from said conical washer a second toric washer is freely mounted around the rod, and which in unstressed condition slightly contacts the surface of the inner conical hole, on said second washer resting the lower flange of a tubular body freely mounted about the rod and having another flange at its opposite end, which upper flange is positioned near the outer end of said hole and supports a nut screwed on the rod so that the screwing of said nut causes the first and second washers made of elastically deformable material to relatively approach one another creating radially pressure forces urging the sector like members to be locked against the inner surface of the column along two parallel circular bands. 
     
     
       7. A table according to claim 1, wherein the expansion locking device designed to be inserted into a conical hole, defined by the set of sector like elements and providing two locking systems operating in parallel plane inside the column comprises a threaded rod at the inner end of which is fixedly connected a conical washer, while a second toric washer is freely mounted about an intermediated zone of said rod, said second washer having an outer diameter lightly less than the inner diameter of the conical hole at the level where said second washer is positioned in its inoperative condition but greater than the minimum inner diameter of said hole, on said second washer resting a first control nut with the interposition of a metal washer said control nut being designed to be screwed on said threaded rod in order to relatively approach said first and second washers made of elastically deformable material one to another at the larger outer end of said conical hole an annular grooved shoulder being arranged designed to receive an abut flanged disc mounted on said rod and on which a second safety lock nut is screwed. 
     
     
       8. A table construction, comprising a vertical column having respective ends with a top cylindrical and bottom cylindrical cavity opening upwardly and downwardly respectively, an upright vertically extending securing bolt centrally arranged in each top and bottom cavity and secured to the inner end of said column, a plurality of table top supporting arm members each having a central sector portion engageable in said top cavity and disposed in side by side relationship around the respective securing bolts in said top cavity, each table top supporting arm member having a table top support arm extending radially outwardly from the top of said column, a plurality of foot members, each having a central vertical sector portion disposed in the bottom cylindrical cavity in side by side relationship around the respective securing bolt in said bottom cavity, an elastic sleeve disposed around each securing bolt between said securing bolt and said sector portions of the respective top supporting arm members and said foot members, and threaded clamping means connected to said bolt and to said elastic sleeve and being threadable on said bolt to act on said sleeve to engage it between said clamping bolt and said sector portions to hold respective sector portions in said column. 
     
     
       9. A table construction according to claim 8 wherein said threaded clamping means includes a sleeve disposed around each clamping bolt, a washer on said clamping bolt adjacent each end of said sleeve, the bottom one of said washers bearing against said elastic sleeve, and a nut threaded onto said bolt and engageable with the top one of said washers. 
     
     
       10. A table construction according to claim 9 wherein said bottom one of said washers is frustural conically shaped and has a side conical surface varying outwardly against said elastic sleeve. 
     
     
       11. A table construction according to claim 8 wherein said threaded clamping means includes the inner walls of said sector portions which are shaped to converge downwardly in said cavity, and means for forcing said elastic sleeve downwardly along said bolt into tight engagement with the downwardly and inwardly sloping walls of said sectors.